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Across 9. 8 sides 11. the only non-rigid transformation 12. the way to prove that PARTS of a triangle are congruent 16. half a sphere 17. equilateral quadrilateral 18. at least two congruent sides 19. the diagonals of a rectangle are ___ 22. when (x, y) becomes (-x, y) is has been reflected across the ___ 23. angles across from each other when two lines cross 25. equiangular quadrilateral 27. from the center to the edge 29. the diagonals of a kite are ______ 33. has two endpoints 35. a shift (left/right) (up/down) 36. (angle/360)*C 39. a justification to show two angles of a triangle are congruent 40. When (x, y) becomes (x, -y) it has been reflected across the ___ 41. a yin-yand symbol has ____ symmetry 42. 12 sides 43. pi times the diameter 45. in the same position with respect to their location 46. quadrilateral with one set of parallel sides 49. quad with two sets of parallel sides 51. quad with two sets of adjacent congruent sides 52. one triangle conjecture we are not allowed to use 54. 11 sides 55. regular quadrilateral

Down 1. 5 sides 2. equilateral and equiangular 3. twice the radius 4. a justification to show two sides of a triangle are congruent 5. translations, rotations and reflections are all ___ transformations 6. a polygon with all congruent angles is equi_____ 7. a 3D shape with two polygon bases 8. the ____ of a parallelogram are congruent 10. a 3D shape with one circular base 13. the corner of a polygon 14. two angles that are supplementary and adjacent 15. 10 sides 20. 6 sides 21. a 3D shape with two circular bases 24. _____ interior angles are congruent when lines are parallel 25. has one endpoint 26. has no endpoints - continues in both directions 28. two angles that add up to 180 30. the diagonals of a parallelogram are congruent and are also ___ ___ 31. two angles that add up to 90 32. no congruent sides 34. the _____ angle is always half the central angle 37. a 3D shape with one polygon base 38. a polygon with all congruent sides is equi_____ 44. a polygon whose diagonals go outside the figure 45. the ___ quad conjecture says opposite angles are supplementary 47. 7 sides 48. 9 sides 50. when you have two angles and the side not included between them 53. when you have two sides and the angle included between them